DC Motors A dc motor can be easily identified by Commutator Winding Yoke Size of conductor Commutator Winding Yoke Size of conductor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × armature current Flux per pole × armature current Armature resistance × applied voltage None of the listed here Armature resistance × armature current Flux per pole × armature current Armature resistance × applied voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will run at very slow speed Motor will not run at all Motor will burn Motor will run at very high speed Motor will run at very slow speed Motor will not run at all Motor will burn Motor will run at very high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? None of the listed here Series motor Either series or shunt Shunt motor None of the listed here Series motor Either series or shunt Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Stability Low cost High starting torque Wide speed range Stability Low cost High starting torque Wide speed range ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Around 500 Ω Low 1000 Ω Infinitely large Around 500 Ω Low 1000 Ω Infinitely large ANSWER DOWNLOAD EXAMIANS APP
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